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प्रश्न
What is known as destructive distillation? Write about the products obtained from fractional distillation of petroleum.
उत्तर
Coal when heated in the absence of air does not bum but produces many by-products. This process of heating coal in the absence of air is called destructive distillation of coal.
Products obtained from petroleum:
- Liquefied Petroleum Gas or LPG
- Diesel and petrol
- Kerosene
- Lubricating oil
- Paraffin
- Bitumen or asphalt
- Refinery Gas
- Naphtha
- Fuel Oil
- Chemicals
- Jet fuel
- Waxes
- Polishes
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संबंधित प्रश्न
Name the petroleum product used for surfacing of roads.
Explain the process of formation of petroleum.
Name a clean gaseous fuel other than LPG and natural gas.
A person buys two electrical devices P and Q for lighting purposes in his house. The device P consumes only 5 units of electricity in a month but device Q consumes 15 units of electricity in a month when used for the same number of hours daily. The device Q wastes a lot of electricity by radiating energy C but P does not do so.
(a) What type of device is (i) P, and (ii) Q?
(b) Name one component which is present in Q but not in P.
(c) Name the energy C.
(d) Which device is more energy efficient : P or Q?
(e) Which fossil fuel is most likely to be conserved if all of us switch over to devices like P?
The term petroleum means ________
Match the following.
Octane rating | Diesel |
Cetane rating | Methane |
Simplest hydrocarbon | Petrol |
Peat | Bown in colour |
Lignite | First stage coal |
Which of the following is not a constituent of petroleum?
Name the petroleum product used as fuel for stoves, lamps and jet aircrafts.
Excessive burning of fossil fuels is a major cause of ______.
Give reason for the following:
Petroleum is considered a harmful source of energy.